Fail2Ban – Detector de Intrusos

Fail2ban para quem não conhece é uma ferramenta para detectar falhas de autenticação no Linux.

No vídeo, mostro como configurar no CentOS 7, bloqueando e enviando e-mail de alerta. 😉

https://www.youtube.com/watch?v=rF4ysGlXpLM

Nagios 4.2.4 – Curso Gratuito – Aula-13 Melhorando a Pesquisa

  Galera, assinem o canal e me ajude a divulgar 😉 ## Baixe o Arquivo search.cgi https://exchange.nagios.org/directory/Addons/Frontends-(GUIs-and-CLIs)/Web-Interfaces/CGI-Modifications/search-2Ecgi/details chmod 755 search.cgi cp search.cgi /usr/local/nagios/sbin/ vim /usr/local/nagios/share/side.php

Curso Gratuito de Nagios 4.2.4 – Aula 12 – Relatórios

Galera, assinem o canal e me ajude a divulgar 😉 ## Baixe o Arquivo search.cgi https://exchange.nagios.org/directory/Addons/Frontends-(GUIs-and-CLIs)/Web-Interfaces/CGI-Modifications/search-2Ecgi/details chmod 755 search.cgi cp search.cgi /usr/local/nagios/sbin/ vim /usr/local/nagios/share/side.php

Curso Gratuito de Nagios 4.2.4 – Aula 11 – Criando o próprio Plugin

vim /usr/local/nagios/libexec/check_site.sh #!/bin/bash ################################################################## ## ## ## lmcirilo at gmail.com ## ## ## ## Procura por duas palavras chaves no site ## ## ## ################################################################## if [ $# = 0 ] then echo “” echo “./check_site.sh [URL] [PalavraChave1] [PalavraChave2]” echo “” echo “Exemplo:” echo “” echo “./check_site.sh http://www.nagios.com reservados Contato” echo “” exit 1 fi […]

Curso Gratuito de Nagios 4.2.4 – Aula 10 – Monitorando Impressora via SNMP

SNMP – Simple Network Management Protocol MIB – Management Information Base OID – Object Identifier ## Comandos SNMP root@ubuntuServer:~# snmpwalk -v1 -c public IP | more root@ubuntuServer:~# snmpget -v1 -c public IP iso.3.6.1.2.1.1.3.0 ## Instalando as mibs no Ubuntu aptitude install snmp-mibs-downloader vim /etc/snmp/snmp.conf ### comentar a linha #mibs : ## baixe as mibs root@ubuntuServer:~# […]

Curso Gratuito de Nagios 4.2.4 – Aula 9 – Event Handler / Reiniciando Serviços Automaticamente

  ################## Cola ######################### ### Instalar o Apache no centOS7 [root@localhost ~]# yum install httpd nagios-plugins-nrpe ## Colocando na Inicialização e iniciando o apache [root@localhost ~]# systemctl enable httpd [root@localhost ~]# systemctl start httpd ## Descobrindo onde esta o comando systemctl [root@localhost ~]# which systemctl /usr/bin/systemctl ## Configurando o NRPE no CentOS7 vim /etc/nagios/nrpe.cfg command[ApacheRestart]=/usr/bin/sudo […]

Curso Gratuito de Nagios 4.2.4 – Aula 8 – HostGroup, ServiceGroup e Links

################## Cola ######################### ## HostGroup cd /usr/local/nagios/etc/linux/ vim hostgroup.cfg define hostgroup { hostgroup_name    LINUX alias                             LINUX members                   CentOS7, Nagios } cd /usr/local/nagios/etc/network/ vim HostGroupSites.cfg define hostgroup { hostgroup_name     SITES […]